Cannot Install Office 2021 on WIn 7 Home Premium machine

ekj 0 Reputation points
2026-11-11T02:19:18.0266667+00:00

There is an error which says the Procedure Entry Point SETProcessMitigationPolicy could not be located in the dynamic link library Kernel32.dll. Is there a way to mitigate this issue?

Microsoft 365 and Office | Install, redeem, activate | Other | Windows
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  1. Ian-T 16,365 Reputation points Microsoft External Staff Moderator
    2026-11-11T06:45:05.3733333+00:00

    Hi @ekj

    I’m sorry, but Office 2021 cannot be installed on Windows 7. It requires Windows 10 or a later supported version, which is why the installer cannot find SetProcessMitigationPolicy in Kernel32.dll. That Windows function is not available in Windows 7.

    There is no supported update or workaround that can add this compatibility. You would need to upgrade the computer to a supported version of Windows, or move the Office 2021 licence to a compatible computer. I would not recommend downloading replacement DLL files from third-party websites, as this will not make Office compatible and could damage or compromise the system.

    Thank you for your time and understanding

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